These are actually 2 different models. The top one is from the book and the the 2nd - YouTube one - is from a PDF which was (is?) available on the net to download, printout and make for FREE!I did, and it's sitting in my room on my bookshelf. A friend of mine bought the book but wants to keep it in good order so isn't going to build it (which kinda drives me nuts - wouldn't it be cooler as a model rather than bits in a book?).Check it out at Boing Boing.